Home / 15,537.65-21,434.61-10,503.64

Finding the Fourth Proportional to 15,537.65, 21,434.61 and 10,503.64

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Solution

The fourth proportional to 15,537.65, 21,434.61 and 10,503.64 is: 14,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,537.65 : 21,434.61 = 10,503.64 : x
  2. Step 2: Convert to fraction form
    15,537.65/21,434.61 = 10,503.64/x
  3. Step 3: Cross multiply
    15,537.65x = 21,434.61 × 10,503.64
  4. Step 4: Simplify right side
    15,537.65x = 225,141,319.81
  5. Step 5: Solve for x
    x = 225,141,319.81/15,537.65
  6. Step 6: Final answer
    x = 14,490.05

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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.