Home / 19,312.80-26,646.40-11,352.16

Finding the Fourth Proportional to 19,312.80, 26,646.40 and 11,352.16

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Solution

The fourth proportional to 19,312.80, 26,646.40 and 11,352.16 is: 15,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.80 : 26,646.40 = 11,352.16 : x
  2. Step 2: Convert to fraction form
    19,312.80/26,646.40 = 11,352.16/x
  3. Step 3: Cross multiply
    19,312.80x = 26,646.40 × 11,352.16
  4. Step 4: Simplify right side
    19,312.80x = 302,494,196.22
  5. Step 5: Solve for x
    x = 302,494,196.22/19,312.80
  6. Step 6: Final answer
    x = 15,662.89

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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.