Home / 10,089.60-15,140.52-6,386.68

Finding the Fourth Proportional to 10,089.60, 15,140.52 and 6,386.68

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Solution

The fourth proportional to 10,089.60, 15,140.52 and 6,386.68 is: 9,583.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.60 : 15,140.52 = 6,386.68 : x
  2. Step 2: Convert to fraction form
    10,089.60/15,140.52 = 6,386.68/x
  3. Step 3: Cross multiply
    10,089.60x = 15,140.52 × 6,386.68
  4. Step 4: Simplify right side
    10,089.60x = 96,697,656.27
  5. Step 5: Solve for x
    x = 96,697,656.27/10,089.60
  6. Step 6: Final answer
    x = 9,583.89

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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.