Home / 15,740.60-23,618.10-7,417.40

Finding the Fourth Proportional to 15,740.60, 23,618.10 and 7,417.40

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Solution

The fourth proportional to 15,740.60, 23,618.10 and 7,417.40 is: 11,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.60 : 23,618.10 = 7,417.40 : x
  2. Step 2: Convert to fraction form
    15,740.60/23,618.10 = 7,417.40/x
  3. Step 3: Cross multiply
    15,740.60x = 23,618.10 × 7,417.40
  4. Step 4: Simplify right side
    15,740.60x = 175,184,894.94
  5. Step 5: Solve for x
    x = 175,184,894.94/15,740.60
  6. Step 6: Final answer
    x = 11,129.49

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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.