Home / 14,985.42-20,681.93-8,697.80

Finding the Fourth Proportional to 14,985.42, 20,681.93 and 8,697.80

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Solution

The fourth proportional to 14,985.42, 20,681.93 and 8,697.80 is: 12,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.42 : 20,681.93 = 8,697.80 : x
  2. Step 2: Convert to fraction form
    14,985.42/20,681.93 = 8,697.80/x
  3. Step 3: Cross multiply
    14,985.42x = 20,681.93 × 8,697.80
  4. Step 4: Simplify right side
    14,985.42x = 179,887,247.87
  5. Step 5: Solve for x
    x = 179,887,247.87/14,985.42
  6. Step 6: Final answer
    x = 12,004.15

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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.