Home / 7,421.90-10,242.45-4,772.93

Finding the Fourth Proportional to 7,421.90, 10,242.45 and 4,772.93

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Solution

The fourth proportional to 7,421.90, 10,242.45 and 4,772.93 is: 6,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.90 : 10,242.45 = 4,772.93 : x
  2. Step 2: Convert to fraction form
    7,421.90/10,242.45 = 4,772.93/x
  3. Step 3: Cross multiply
    7,421.90x = 10,242.45 × 4,772.93
  4. Step 4: Simplify right side
    7,421.90x = 48,886,445.67
  5. Step 5: Solve for x
    x = 48,886,445.67/7,421.90
  6. Step 6: Final answer
    x = 6,586.79

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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.