Home / 10,399.14-14,314.65-9,070.53

Finding the Fourth Proportional to 10,399.14, 14,314.65 and 9,070.53

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Solution

The fourth proportional to 10,399.14, 14,314.65 and 9,070.53 is: 12,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.14 : 14,314.65 = 9,070.53 : x
  2. Step 2: Convert to fraction form
    10,399.14/14,314.65 = 9,070.53/x
  3. Step 3: Cross multiply
    10,399.14x = 14,314.65 × 9,070.53
  4. Step 4: Simplify right side
    10,399.14x = 129,841,462.26
  5. Step 5: Solve for x
    x = 129,841,462.26/10,399.14
  6. Step 6: Final answer
    x = 12,485.79

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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.