Home / 15,888.02-21,925.64-8,814.60

Finding the Fourth Proportional to 15,888.02, 21,925.64 and 8,814.60

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Solution

The fourth proportional to 15,888.02, 21,925.64 and 8,814.60 is: 12,164.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.02 : 21,925.64 = 8,814.60 : x
  2. Step 2: Convert to fraction form
    15,888.02/21,925.64 = 8,814.60/x
  3. Step 3: Cross multiply
    15,888.02x = 21,925.64 × 8,814.60
  4. Step 4: Simplify right side
    15,888.02x = 193,265,746.34
  5. Step 5: Solve for x
    x = 193,265,746.34/15,888.02
  6. Step 6: Final answer
    x = 12,164.24

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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.