Home / 12,688.77-18,996.71-9,554.07

Finding the Fourth Proportional to 12,688.77, 18,996.71 and 9,554.07

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Solution

The fourth proportional to 12,688.77, 18,996.71 and 9,554.07 is: 14,303.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.77 : 18,996.71 = 9,554.07 : x
  2. Step 2: Convert to fraction form
    12,688.77/18,996.71 = 9,554.07/x
  3. Step 3: Cross multiply
    12,688.77x = 18,996.71 × 9,554.07
  4. Step 4: Simplify right side
    12,688.77x = 181,495,849.34
  5. Step 5: Solve for x
    x = 181,495,849.34/12,688.77
  6. Step 6: Final answer
    x = 14,303.66

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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.