Home / 13,875.63-19,148.40-7,587.96

Finding the Fourth Proportional to 13,875.63, 19,148.40 and 7,587.96

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Solution

The fourth proportional to 13,875.63, 19,148.40 and 7,587.96 is: 10,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.63 : 19,148.40 = 7,587.96 : x
  2. Step 2: Convert to fraction form
    13,875.63/19,148.40 = 7,587.96/x
  3. Step 3: Cross multiply
    13,875.63x = 19,148.40 × 7,587.96
  4. Step 4: Simplify right side
    13,875.63x = 145,297,293.26
  5. Step 5: Solve for x
    x = 145,297,293.26/13,875.63
  6. Step 6: Final answer
    x = 10,471.40

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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.