Home / 10,406.31-15,527.36-9,421.35

Finding the Fourth Proportional to 10,406.31, 15,527.36 and 9,421.35

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Solution

The fourth proportional to 10,406.31, 15,527.36 and 9,421.35 is: 14,057.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406.31 : 15,527.36 = 9,421.35 : x
  2. Step 2: Convert to fraction form
    10,406.31/15,527.36 = 9,421.35/x
  3. Step 3: Cross multiply
    10,406.31x = 15,527.36 × 9,421.35
  4. Step 4: Simplify right side
    10,406.31x = 146,288,646.03
  5. Step 5: Solve for x
    x = 146,288,646.03/10,406.31
  6. Step 6: Final answer
    x = 14,057.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.