Home / 15,535.65-21,431.85-10,501.62

Finding the Fourth Proportional to 15,535.65, 21,431.85 and 10,501.62

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Solution

The fourth proportional to 15,535.65, 21,431.85 and 10,501.62 is: 14,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.65 : 21,431.85 = 10,501.62 : x
  2. Step 2: Convert to fraction form
    15,535.65/21,431.85 = 10,501.62/x
  3. Step 3: Cross multiply
    15,535.65x = 21,431.85 × 10,501.62
  4. Step 4: Simplify right side
    15,535.65x = 225,069,144.60
  5. Step 5: Solve for x
    x = 225,069,144.60/15,535.65
  6. Step 6: Final answer
    x = 14,487.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.