Home / 19,417.60-26,777.80-12,701.12

Finding the Fourth Proportional to 19,417.60, 26,777.80 and 12,701.12

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Solution

The fourth proportional to 19,417.60, 26,777.80 and 12,701.12 is: 17,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,417.60 : 26,777.80 = 12,701.12 : x
  2. Step 2: Convert to fraction form
    19,417.60/26,777.80 = 12,701.12/x
  3. Step 3: Cross multiply
    19,417.60x = 26,777.80 × 12,701.12
  4. Step 4: Simplify right side
    19,417.60x = 340,108,051.14
  5. Step 5: Solve for x
    x = 340,108,051.14/19,417.60
  6. Step 6: Final answer
    x = 17,515.45

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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.