Home / 15,518.64-23,281.08-4,428.72

Finding the Fourth Proportional to 15,518.64, 23,281.08 and 4,428.72

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Solution

The fourth proportional to 15,518.64, 23,281.08 and 4,428.72 is: 6,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518.64 : 23,281.08 = 4,428.72 : x
  2. Step 2: Convert to fraction form
    15,518.64/23,281.08 = 4,428.72/x
  3. Step 3: Cross multiply
    15,518.64x = 23,281.08 × 4,428.72
  4. Step 4: Simplify right side
    15,518.64x = 103,105,384.62
  5. Step 5: Solve for x
    x = 103,105,384.62/15,518.64
  6. Step 6: Final answer
    x = 6,643.97

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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.