Home / 7,474.59-10,312.65-4,287.51

Finding the Fourth Proportional to 7,474.59, 10,312.65 and 4,287.51

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Solution

The fourth proportional to 7,474.59, 10,312.65 and 4,287.51 is: 5,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.59 : 10,312.65 = 4,287.51 : x
  2. Step 2: Convert to fraction form
    7,474.59/10,312.65 = 4,287.51/x
  3. Step 3: Cross multiply
    7,474.59x = 10,312.65 × 4,287.51
  4. Step 4: Simplify right side
    7,474.59x = 44,215,590.00
  5. Step 5: Solve for x
    x = 44,215,590.00/7,474.59
  6. Step 6: Final answer
    x = 5,915.45

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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.