Home / 10,373.86-15,547.35-5,430.98

Finding the Fourth Proportional to 10,373.86, 15,547.35 and 5,430.98

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Solution

The fourth proportional to 10,373.86, 15,547.35 and 5,430.98 is: 8,139.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,373.86 : 15,547.35 = 5,430.98 : x
  2. Step 2: Convert to fraction form
    10,373.86/15,547.35 = 5,430.98/x
  3. Step 3: Cross multiply
    10,373.86x = 15,547.35 × 5,430.98
  4. Step 4: Simplify right side
    10,373.86x = 84,437,346.90
  5. Step 5: Solve for x
    x = 84,437,346.90/10,373.86
  6. Step 6: Final answer
    x = 8,139.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.