Home / 14,365.40-21,539.28-5,590.10

Finding the Fourth Proportional to 14,365.40, 21,539.28 and 5,590.10

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Solution

The fourth proportional to 14,365.40, 21,539.28 and 5,590.10 is: 8,381.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,365.40 : 21,539.28 = 5,590.10 : x
  2. Step 2: Convert to fraction form
    14,365.40/21,539.28 = 5,590.10/x
  3. Step 3: Cross multiply
    14,365.40x = 21,539.28 × 5,590.10
  4. Step 4: Simplify right side
    14,365.40x = 120,406,729.13
  5. Step 5: Solve for x
    x = 120,406,729.13/14,365.40
  6. Step 6: Final answer
    x = 8,381.72

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1.5x scale

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.