Home / 12,970.86-19,425.08-7,407.34

Finding the Fourth Proportional to 12,970.86, 19,425.08 and 7,407.34

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Solution

The fourth proportional to 12,970.86, 19,425.08 and 7,407.34 is: 11,093.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970.86 : 19,425.08 = 7,407.34 : x
  2. Step 2: Convert to fraction form
    12,970.86/19,425.08 = 7,407.34/x
  3. Step 3: Cross multiply
    12,970.86x = 19,425.08 × 7,407.34
  4. Step 4: Simplify right side
    12,970.86x = 143,888,172.09
  5. Step 5: Solve for x
    x = 143,888,172.09/12,970.86
  6. Step 6: Final answer
    x = 11,093.19

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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.