Home / 13,036.72-18,005.53-8,837.68

Finding the Fourth Proportional to 13,036.72, 18,005.53 and 8,837.68

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Solution

The fourth proportional to 13,036.72, 18,005.53 and 8,837.68 is: 12,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.72 : 18,005.53 = 8,837.68 : x
  2. Step 2: Convert to fraction form
    13,036.72/18,005.53 = 8,837.68/x
  3. Step 3: Cross multiply
    13,036.72x = 18,005.53 × 8,837.68
  4. Step 4: Simplify right side
    13,036.72x = 159,127,068.18
  5. Step 5: Solve for x
    x = 159,127,068.18/13,036.72
  6. Step 6: Final answer
    x = 12,206.07

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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.