Home / 10,347.91-14,287.26-9,686.95

Finding the Fourth Proportional to 10,347.91, 14,287.26 and 9,686.95

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Solution

The fourth proportional to 10,347.91, 14,287.26 and 9,686.95 is: 13,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.91 : 14,287.26 = 9,686.95 : x
  2. Step 2: Convert to fraction form
    10,347.91/14,287.26 = 9,686.95/x
  3. Step 3: Cross multiply
    10,347.91x = 14,287.26 × 9,686.95
  4. Step 4: Simplify right side
    10,347.91x = 138,399,973.26
  5. Step 5: Solve for x
    x = 138,399,973.26/10,347.91
  6. Step 6: Final answer
    x = 13,374.68

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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.