Home / 10,980.65-15,153.47-6,200.87

Finding the Fourth Proportional to 10,980.65, 15,153.47 and 6,200.87

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Solution

The fourth proportional to 10,980.65, 15,153.47 and 6,200.87 is: 8,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.65 : 15,153.47 = 6,200.87 : x
  2. Step 2: Convert to fraction form
    10,980.65/15,153.47 = 6,200.87/x
  3. Step 3: Cross multiply
    10,980.65x = 15,153.47 × 6,200.87
  4. Step 4: Simplify right side
    10,980.65x = 93,964,666.51
  5. Step 5: Solve for x
    x = 93,964,666.51/10,980.65
  6. Step 6: Final answer
    x = 8,557.30

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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.