Home / 13,030.99-17,981.70-7,652.86

Finding the Fourth Proportional to 13,030.99, 17,981.70 and 7,652.86

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Solution

The fourth proportional to 13,030.99, 17,981.70 and 7,652.86 is: 10,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,030.99 : 17,981.70 = 7,652.86 : x
  2. Step 2: Convert to fraction form
    13,030.99/17,981.70 = 7,652.86/x
  3. Step 3: Cross multiply
    13,030.99x = 17,981.70 × 7,652.86
  4. Step 4: Simplify right side
    13,030.99x = 137,611,432.66
  5. Step 5: Solve for x
    x = 137,611,432.66/13,030.99
  6. Step 6: Final answer
    x = 10,560.32

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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.