Home / 15,567.72-21,486.24-9,280.50

Finding the Fourth Proportional to 15,567.72, 21,486.24 and 9,280.50

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Solution

The fourth proportional to 15,567.72, 21,486.24 and 9,280.50 is: 12,808.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,567.72 : 21,486.24 = 9,280.50 : x
  2. Step 2: Convert to fraction form
    15,567.72/21,486.24 = 9,280.50/x
  3. Step 3: Cross multiply
    15,567.72x = 21,486.24 × 9,280.50
  4. Step 4: Simplify right side
    15,567.72x = 199,403,050.32
  5. Step 5: Solve for x
    x = 199,403,050.32/15,567.72
  6. Step 6: Final answer
    x = 12,808.75

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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.