Home / 12,430.32-17,154.54-7,126.02

Finding the Fourth Proportional to 12,430.32, 17,154.54 and 7,126.02

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Solution

The fourth proportional to 12,430.32, 17,154.54 and 7,126.02 is: 9,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.32 : 17,154.54 = 7,126.02 : x
  2. Step 2: Convert to fraction form
    12,430.32/17,154.54 = 7,126.02/x
  3. Step 3: Cross multiply
    12,430.32x = 17,154.54 × 7,126.02
  4. Step 4: Simplify right side
    12,430.32x = 122,243,595.13
  5. Step 5: Solve for x
    x = 122,243,595.13/12,430.32
  6. Step 6: Final answer
    x = 9,834.31

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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.