Home / 12,574.04-18,864.24-4,778.60

Finding the Fourth Proportional to 12,574.04, 18,864.24 and 4,778.60

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Solution

The fourth proportional to 12,574.04, 18,864.24 and 4,778.60 is: 7,169.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.04 : 18,864.24 = 4,778.60 : x
  2. Step 2: Convert to fraction form
    12,574.04/18,864.24 = 4,778.60/x
  3. Step 3: Cross multiply
    12,574.04x = 18,864.24 × 4,778.60
  4. Step 4: Simplify right side
    12,574.04x = 90,144,657.26
  5. Step 5: Solve for x
    x = 90,144,657.26/12,574.04
  6. Step 6: Final answer
    x = 7,169.11

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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.