Home / 13,271.90-18,314.76-7,303.51

Finding the Fourth Proportional to 13,271.90, 18,314.76 and 7,303.51

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Solution

The fourth proportional to 13,271.90, 18,314.76 and 7,303.51 is: 10,078.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.90 : 18,314.76 = 7,303.51 : x
  2. Step 2: Convert to fraction form
    13,271.90/18,314.76 = 7,303.51/x
  3. Step 3: Cross multiply
    13,271.90x = 18,314.76 × 7,303.51
  4. Step 4: Simplify right side
    13,271.90x = 133,762,032.81
  5. Step 5: Solve for x
    x = 133,762,032.81/13,271.90
  6. Step 6: Final answer
    x = 10,078.59

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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.