Home / 9,320.48-13,985.48-5,159.70

Finding the Fourth Proportional to 9,320.48, 13,985.48 and 5,159.70

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Solution

The fourth proportional to 9,320.48, 13,985.48 and 5,159.70 is: 7,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.48 : 13,985.48 = 5,159.70 : x
  2. Step 2: Convert to fraction form
    9,320.48/13,985.48 = 5,159.70/x
  3. Step 3: Cross multiply
    9,320.48x = 13,985.48 × 5,159.70
  4. Step 4: Simplify right side
    9,320.48x = 72,160,881.16
  5. Step 5: Solve for x
    x = 72,160,881.16/9,320.48
  6. Step 6: Final answer
    x = 7,742.19

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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.