Home / 12,567.20-18,798.86-10,320.74

Finding the Fourth Proportional to 12,567.20, 18,798.86 and 10,320.74

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Solution

The fourth proportional to 12,567.20, 18,798.86 and 10,320.74 is: 15,438.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,567.20 : 18,798.86 = 10,320.74 : x
  2. Step 2: Convert to fraction form
    12,567.20/18,798.86 = 10,320.74/x
  3. Step 3: Cross multiply
    12,567.20x = 18,798.86 × 10,320.74
  4. Step 4: Simplify right side
    12,567.20x = 194,018,172.50
  5. Step 5: Solve for x
    x = 194,018,172.50/12,567.20
  6. Step 6: Final answer
    x = 15,438.46

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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.