Home / 10,887.99-16,320.95-7,378.35

Finding the Fourth Proportional to 10,887.99, 16,320.95 and 7,378.35

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Solution

The fourth proportional to 10,887.99, 16,320.95 and 7,378.35 is: 11,060.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.99 : 16,320.95 = 7,378.35 : x
  2. Step 2: Convert to fraction form
    10,887.99/16,320.95 = 7,378.35/x
  3. Step 3: Cross multiply
    10,887.99x = 16,320.95 × 7,378.35
  4. Step 4: Simplify right side
    10,887.99x = 120,421,672.46
  5. Step 5: Solve for x
    x = 120,421,672.46/10,887.99
  6. Step 6: Final answer
    x = 11,060.05

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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.