Home / 15,888.37-21,925.21-8,718.13

Finding the Fourth Proportional to 15,888.37, 21,925.21 and 8,718.13

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Solution

The fourth proportional to 15,888.37, 21,925.21 and 8,718.13 is: 12,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888.37 : 21,925.21 = 8,718.13 : x
  2. Step 2: Convert to fraction form
    15,888.37/21,925.21 = 8,718.13/x
  3. Step 3: Cross multiply
    15,888.37x = 21,925.21 × 8,718.13
  4. Step 4: Simplify right side
    15,888.37x = 191,146,677.84
  5. Step 5: Solve for x
    x = 191,146,677.84/15,888.37
  6. Step 6: Final answer
    x = 12,030.60

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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.